All I can counter with at the moment is many people have 'seen' Criss Angel levitate, so is that proof that he can defy gravity?

But Christ was buried and guarded by the Romans, and then his resurrected body was eyewitnessed by hundreds, who had not only 'seen' this resurrection, but were so convinced that they died to stand behind their testimony even when Nero gave them the chance to back out. My guess, if you were to find someone who saw Criss Angel levitate, and then torture them and tell them if they rescind their statement they can leave or if they stand behind it they will die. And if you did this 2-3 times before finally killing them...you wouldn't have any eyewitnesses left for Criss Angel. But those who witnessed the resurrection were tortured and went to the grave for their testimony. You have to admit, that is pretty powerful.